The motivation for this method is to allow isolated IPv6 domains or
hosts, attached to an IPv4 network which has no native IPv6 support,
to communicate with other such IPv6 domains or hosts with minimal
manual configuration, before they can obtain natuve IPv6
connectivity.

It should say:

The motivation for this method is to allow isolated IPv6 domains or
hosts, attached to an IPv4 network which has no native IPv6 support,
to communicate with other such IPv6 domains or hosts with minimal
manual configuration, before they can obtain native IPv6
connectivity.